CVE-2026-56330
CVE-2026-56330 is a low-severity vulnerability with a CVSS 3.x base score of 3.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-601.
Key facts
- Severity: Low (CVSS 3.x base score 3.5)
- CVSS v4: 4.8
- EPSS exploit prediction: 0% (5th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-38126
- Weakness: CWE-601
- Published:
- Last modified:
Description
Capgo before 12.128.2 contains an open redirect vulnerability in stripe_portal and stripe_checkout endpoints that accept unvalidated callbackUrl, successUrl, and cancelUrl parameters. Authenticated attackers can craft malicious billing URLs to redirect users to attacker-controlled domains for phishing and credential harvesting.
Frequently asked questions
- What is CVE-2026-56330?
- Capgo before 12.128.2 contains an open redirect vulnerability in stripe_portal and stripe_checkout endpoints that accept unvalidated callbackUrl, successUrl, and cancelUrl parameters. Authenticated attackers can craft malicious billing URLs to redirect users to attacker-controlled domains for phishing and credential harvesting.
- How severe is CVE-2026-56330?
- CVE-2026-56330 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.
- Is CVE-2026-56330 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-56330?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-56330 have an EU (EUVD) identifier?
- Yes. CVE-2026-56330 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-38126.
- When was CVE-2026-56330 published?
- CVE-2026-56330 was published on 2026-06-20 and last updated on 2026-06-23.
References
- https://github.com/Cap-go/capgo/security/advisories/GHSA-grc7-98pf-h8hq
- https://www.vulncheck.com/advisories/capgo-open-redirect-via-unvalidated-stripe-billing-urls
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